Ore-roaster



V. LORD.

ORE MASTER.

(NQ Model Patented JunexZS, 1'887.

UNITED STATES PATENT OEEICE.

VICTOR LORD, OF ODESS'A, DELAWARE.

ORE- ROAST E R.

spnorrxcearonliming pm of Letters Patent No. 365.393. dated :rune za, 1887.

y pplieatiou filed January 19, 19H6. Serial Noallf). (No model.)

To all whom it may concern:

Be it known that l, Vieron LORD, a citizen vof the United States, residing at Odessa, inthe county of New Castle, State of Delaware, have 5 inventedauew and useful improvement in Ore- .Roasters, which improvement is fully set forth iu the following specification and accompany- .ing drawings, in which--4 Figure 1 represents a partial end elevation and partial transverse section of an ore-roaster embodying my invention. Fig. 2 represents a longitudinal vertical section thereof.

Similar letters of reference indicate correponding parts in the two figures. i 5 My invention consists of an apparatus for roasting ores, the same being effective in operation and of' comparatively inexpensive construction, as willebe hereinafter fnl'iy set forth.w

Referrin to the drawings, A represents a furnace having a series of pans, B, which are arranged side by side and oneabove the other,

said pans communicating with each other alternately at opposite ends and containing spiral coi1\'eyers(l,wliich are rotated in any Silitable manner.

1') represents elevators, which, bymeans of chutes E, are in com m n nieation'with the lowest series of pans l, and have their upper ends so disposed that they discharge their loads into the top serios of pans.

' At one end of the furnace A is au elevator, F, for supplying the pans with ore, and .at the top of the furnace are spiral conveyers, G H, below which is a hopper, J', having branches K, which discharge into the lowest series of pans.

The conveyors C are each formed of a spiral tube, C', which is connected with a central shaft, C, by means of tubular branches, C,

said shaft being tubular, whereby water mayl be admitted into t-he shaft,- and as the spiral tube C and the branches C are in communication with each other and with the shaft the waterflows into said spiral tube and branches, thus serving to cool the eonveyer.

lVhen the ore is raised by the elevator F, it is supplied to the conveyer G and the conveyer H, and distributed by the latter to the hopper J, and so fed to the lowest series of pans, where the ore is tired .by means of coal, wood, or

.5o other fuel placed on the pans B, and by means of the spiral eonveyer in said pans carried to the chute E, whereby it is taken up by the elevator Danddeposiied in the top series of pans. The ore is carried to the pans and is discharged from the pans just above the lowest tie-r or series thereof, .a spout, L, heilig provided for such purpose.

The furnace has a chimney, M, so that a proper draft is maintained, and as the ore is in a state of ignition as it passes through the several paus and is stirred by the conveyers, it is evident that the roasting is efiectivel y accomplished. This action is increased'by the location of the terminal series of pans above the bottom series, whereby said discharge series are heated by the intense heat of `the bottom series, the heat of the pans being generally communicated to each other. Y L Ltjgill be. seen that thev apparatus is comparatively inexpensive, and may be easily operated and will be found admirably adapted for burning 0r roasting the various ores of silver, copper, zine, 85e., so as to remove the sulphur therefrom. The ore is directed by the spout L toaspiral conveyer, L', by which itis deposited in a tank` or otherrcccptaele, as at N.

I do not limit myself to the arrangement of the paus side by side, noi` to the number of series, as the same may be varied as desired.

The shelves or pans are preferably formed of tile'; but any suitable material may be employed for the same.

I am aware that it is not new to construct an ore-roaster having a series of pans placed one above another or alongside of each other, and having mechanism hereby the ore may be carried along the pans and from one to another thereof, and finally discharged from the lowest one of the series, the interior ofthe roaster being heated by means of a furnace located either beneath or at the side of, but outside of, said pans. Such constructions are old; but in the mechanism described herein, and shown in the accompanying drawings, the furnace or fire-pot as a separate construction is not employed, the paus being heated by fuel introduced into the lower pan of each series "by means of openings P in the front walls of the apparatus, the said fuel mixing with the IOO .z eee,

are need, ee ileseribedm'hereby the conveyors ere cooel end thereby preeeiifed. Neither' zunleW-ere tiret ore-roasters have been constructed in whieh the ore isirst emptied into thclowest one of a Series of pens and therein heated lie-V fire it ie eonveyefl to the top one of the series by the' elevators, it finally being' discharged from the next to t'ne lowest of the series. By thiserrengernent the ore, by being first heet-ed Before passing into the elevator, is in condition to permit the escape of the sulphur therefrom while being agitated. .in the elevator. This' construction also permits economy of' space :u d Simplicity of parte, es een readily be seen.

:irai/ing thus described my inventioxinwhat l elemee new, and lesire to secure by Lettere Patent, is- `V i.. A roasting furnace having :L series; of' lieartiie located one above the other, alternately communicating et opposite ends, the

lowest ileertlr having e chute leading thereat opposite ends, the said hopper J leading to vthe loweet one thereof, conveyors C in said hearth, and menns'to operate the same, sub. etentiolly ne described, the elevator l), and chutes E, eonmxunicating between the lov/'est and top heerths, end spout l), leading from next tolowoet hearth to the outsideof the for neee, all substantially ee described.

VICTOR LORD.

VitneSees: v

'Jeun A.. Wmmzeemmf, A. i. GRANT.

l a series ol' heertixs alternately communicating 

